/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.runtime.taskmanager;

import org.apache.flink.runtime.util.FatalExitExceptionHandler;

import java.util.concurrent.ThreadFactory;

/**
 * Thread factory that creates threads with a given name, associates them with a given thread group,
 * and set them to daemon mode.
 */
public class DispatcherThreadFactory implements ThreadFactory {

    private final ThreadGroup group;

    private final String threadName;

    /**
     * Creates a new thread factory.
     *
     * @param group The group that the threads will be associated with.
     * @param threadName The name for the threads.
     */
    public DispatcherThreadFactory(ThreadGroup group, String threadName) {
        this.group = group;
        this.threadName = threadName;
    }

    @Override
    public Thread newThread(Runnable r) {
        Thread t = new Thread(group, r, threadName);
        t.setDaemon(true);
        t.setUncaughtExceptionHandler(FatalExitExceptionHandler.INSTANCE);
        return t;
    }
}
